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Sleep Disorder Specialists Hagerstown MD

Looking for Sleep Disorder Specialists in Hagerstown? We have compiled a list of businesses and services around Hagerstown that should help you with your search. We hope this page helps you find Sleep Disorder Specialists in Hagerstown.

Sally Garber
(717) 794-2144
13451 Sunrise Dr.
Blue Ridge Summit, PA
Membership Organizations
International Association for Colon Hydrotherapy (IACT)

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Barvinchack Evon District Of Columbia
(717) 597-9470
11142 Williamsport Pike
Greencastle, PA
 
Barvinchack- Evon Chiropractor
(717) 597-2829
11142 Williamsport Pike
Greencastle, PA
 
Caring Touch Massage & Physical Therapy
(717) 762-8386
239 East Main Street
Waynesboro, PA
 
1 Hot Opportunity-Streamline International
(304) 876-1316
PO Box 2102
Shepherdstown, WV
 
Olya MacMillan
(301) 787-1309
198 Thomas Johnson Dr.+ suite 13
Frederick, MD
Membership Organizations
International Association for Colon Hydrotherapy (IACT)

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All Natural Chiropractic PLLC
(717) 597-1944
30 Disert Drive
Greencastle, PA
 
Apple A Day Chiropractic Center
(717) 762-1500
11074 Buchanan Trail East
Waynesboro, PA
 
Chiropractic Health Center
(304) 876-2230
Maddex Professional
Shepherdstown, WV
 
C V S/ Pharmacy
(304) 267-0532
520 S Raleigh St
Martinsburg, WV
 
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The Different Stages of Sleep

 Sleep 

In 1952, sleep-researcher Nathaniel Kleitman discovered that although sleepers tended to have slow, rolling eye movements beneath their lids as they fell asleep, during some portions of their sleep their eyes darted rapidly in a highly coordinated way, moving more quickly and sharply than they could while they were awake. He dubbed the phenomenon rapid eye movement (REM), a phase of sleep that was later related to dreaming.

Later researchers using electroencephalogram (EEG) that measures the electrical activity in the brain discovered that the REM stage of sleep is different from non-REM (NREM) sleep.

Sleep occurs in a series of cycles, each lasting between sixty and ninety minutes. A normal sleep pattern involves four to seven such cycles during the course of the night. On average, people have five or six sleep cycles during a normal nighttime sleep session.

Each cycle has two main parts. 

During the first part, our level of consciousness falls while the level of unconsciousness rises. This part of the cycle involves changes in heart rate and breathing, and an overall slowing of brain activity. We do not dream during this phase. 

In the second part of the cycle, however, we do dream. The characteristic sign of this phase of sleep is rapid eye movement, or REM.

Generally, each ninety-minute sleep cycle contains a non- REM period (or slow-wave sleep) and the REM period. On average, each of these two main periods occupies about 50 percent of the cycle's elapsed time, or about forty-five minutes. However, the balance between the two periods shifts during the course of the night. During the first ninety-minute cycle, the REM phase might last only a few minutes. In the final cycle of the night, REM sleep occupies most of the time, perhaps an hour or more.

Non-REM sleep actually consists of four distinct substages, labeled 1 through 4. The stages are defined according to the ...

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